 The sparsely wooded land of loess hills is crossed here from southeast to northwest by the Emsbach, which is fed near Niederbrechen by the Wörsbach and drains the area down to the Lahn.Together with the "Idsteiner Senke" (basin), which joins it in the south, this patch of countryside is customarily known as the "Goldener Grund" (“Golden Ground”), a reference to the favourable climate and the fruitful earth.In the northwest the community of Brechen borders on the district seat of Limburg, in the north on the town of Runkel, in the northeast on the market town of Villmar, in the southeast on the community of Selters and in the southwest on the community of Hünfelden (all in Limburg-Weilburg).